Results 41 to 50 of about 2,011,431 (260)

Defects Can Increase the Melting Temperature of DNA-Nanoparticle Assemblies [PDF]

open access: yesJ. Phys. Chem. B, 110 (2006) 16393-16396, 2007
DNA-gold nanoparticle assemblies have shown promise as an alternative technology to DNA microarrays for DNA detection and RNA profiling. Understanding the effect of DNA sequences on the melting temperature of the system is central to developing reliable detection technology.
arxiv   +1 more source

A Method for Constructing Nucleosome Arrays with Spatially Defined Histone PTMs and DNA Damage

open access: yesAngewandte Chemie, EarlyView.
This work advances methodology by addressing challenges in mimicking the complex in vivo spatial relationships of histone acetylation and DNA damage. The combination of an abiotic/enzymatic hybrid catalyst system (ABEHCS) and the plug‐and‐play method has constituted a versatile platform to construct nucleosome arrays with precise histone acetylation ...
Ziyun Liu   +6 more
wiley   +2 more sources

FACT Assists Base Excision Repair by Boosting the Remodeling Activity of RSC. [PDF]

open access: yesPLoS Genetics, 2016
FACT, in addition to its role in transcription, is likely implicated in both transcription-coupled nucleotide excision repair and DNA double strand break repair.
John Lalith Charles Richard   +11 more
doaj   +1 more source

Accumulation of DNA damage alters microRNA gene transcription in Arabidopsis thaliana

open access: yesBMC Plant Biology, 2022
Background MicroRNAs (miRNAs) and other epigenetic modifications play fundamental roles in all eukaryotic biological processes. DNA damage repair is a key process for maintaining the genomic integrity of different organisms exposed to diverse stresses ...
Juan Du   +8 more
doaj   +1 more source

Small Molecule Inhibitors of 8-Oxoguanine DNA Glycosylase-1 (OGG1).

open access: yesACS Chemical Biology, 2015
The DNA base excision repair (BER) pathway, which utilizes DNA glycosylases to initiate repair of specific DNA lesions, is the major pathway for the repair of DNA damage induced by oxidation, alkylation, and deamination.
N. Donley   +5 more
semanticscholar   +1 more source

Mitochondrial inhibition of uracil-DNA glycosylase is not mutagenic

open access: yesMolecular Cancer, 2004
Background Uracil DNA glycosylase (UDG) plays a major role in repair of uracil formed due to deamination of cytosine. UDG in human cells is present in both the nucleus and mitochondrial compartments.
Singh Keshav K, Kachhap Sushant
doaj   +1 more source

Elongation/Compaction of Giant DNA Caused by Depletion Interaction with a Flexible Polymer [PDF]

open access: yes, 2005
Structural changes in giant DNA induced by the addition of the flexible polymer PEG were examined by the method of single-DNA observation. In dilute DNA conditions, individual DNA assumes a compact state via a discrete coil-globule transition, whereas in concentrated solution, DNA molecules exhibit an extended conformation via macroscopic phase ...
arxiv   +1 more source

Organic Transistor‐Based Biosensors for Viral RNA Detection and Variant Monitoring: From SARS‐CoV‐2 to Effective Management of Future Pandemics

open access: yesAdvanced Sensor Research, EarlyView.
A novel approach for direct sensing of viral RNA is proposed, allowing PCR‐free detection of viral RNA from genomic material, and variants screening by discrimination of polymorphic amplicons. The device is a cost‐effective, user‐friendly platform suitable for both mass screening kits and as a laboratory tool for an optimized management of resources ...
Stefano Lai   +4 more
wiley   +1 more source

Lesion search and recognition by thymine DNA glycosylase revealed by single molecule imaging

open access: yesNucleic Acids Research, 2015
The ability of DNA glycosylases to rapidly and efficiently detect lesions among a vast excess of nondamaged DNA bases is vitally important in base excision repair (BER). Here, we use single molecule imaging by atomic force microscopy (AFM) supported by a
Claudia N. Buechner   +3 more
semanticscholar   +1 more source

Crystal structure of mimivirus uracil-DNA glycosylase. [PDF]

open access: yesPLoS ONE, 2017
Cytosine deamination induced by stresses or enzymatic catalysis converts deoxycytidine into deoxyuridine, thereby introducing a G to A mutation after DNA replication.
Eunju Kwon   +3 more
doaj   +1 more source

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